Steam Community modals as links

Converts pseudo-links from Steam Community into real anchor tags. Advantages:

• No JavaScript needed for opening Steam Community items. They are now plain links.
• We can open them as a full page, instead of being constrained to the clunky modal dialog.
• We can open them as a new tabs or as a new windows.
• We can right-click to copy the link to each item.
• We can click-and-drag the link.
• We can open many items as background tabs (by middle-clicking on them) and let them load in the background, instead of forcing us to wait for them to load.

Frankly, they should have been links in the first place.

This is also available at:

• https://greasyfork.org/en/scripts/498305-steam-community-modals-as-links
• https://gist.github.com/denilsonsa/c18dd78cba66832720176728f33f0c01